Method of forming liners for metal caps and article produced thereby



Dec.4,1923. 1,476,114

- G. D. SUNDSTRAND I LATHE AND TAPER CUTTING MEANS T OR THE SAME igled June '7, 1919 2 Sheets-Sheet 2 Patent ed Dec. 4, 192 3. 7

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Applicatonflled se iember 1, ma. Serial no. tenets.

' To all whom it may Be it known that l THOMAS L. TALIA- v .inous we there is the advantage of notrnnno, a citizen of the United States, residing at Chicago, in the county of Cook, State of Illinois, have invented certain new and useful Improvements in Methods of Forming Liners for Metal Caps and Article Produced Thereby, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

My invention relates to liners for the metallic caps for containers of various kinds.

Heretofore such liners have been formed of disks of pulp board and the like, and a separate dlsk of oiled paper which were assembled in the cap. Another method was to pass pulp board between rolls which applied a coating bf glue or sizing thereon made from albumen, casein, dextrme and the like, but these substances carried more or less moisture, so that in drying, the sheet became warped or the liners formed therefrom would become warped and distorted. Then a ain .difi'erent runs of ulp board would alisorb more glue than ot ers, which caused trouble in sticking. Furthermore, the glue used. afforded no water proofing quality to such liners and it was not possible to glue paper oiled on both sides or throughout. to such a sized surface.

My object is to use the usual pulp sheet and the usual oiled paper of commerce in the formation of liner material, and to provide a novel method of uniting such materials. Also, to provide an improved liner as the result of such method.

This I accomplish in the following manner, the drawing showing in- Figure 1 a plan view of liner;

Fig. 2 section thereof; and

Fig. 3 is a perspective, with one part or the ollcd sheet separated.

I first dissolve chicle or equivalent gum in heated paraffin, or equivalent wax, which forms the water-proofing material. With this solution I coat one side of the pulp board by passing the sheet between rolls which deposit the solution on one side only of the sheet. While the solution is still warm. a sheet of oiled paper is laid on the coated surface and united thereto by pressure, preferably by passing the two superposed sheets bet-ween pressure rolls. Actual practice has shown that the gum and parafiin coating will afford a surface to which and wax solution.

oiled paper will adhere. Inusing paraflin or any wax, in combination with any resonly further water-proofingthe pul hoard,

employed; and, furthermore, an oiled surface will adhere thereto sufficiently to per mit the liners to be cut from such a composite sheet and applied to the metal caps.-

me lted, forms a medium or vehicle in which chicle or other resinousgum will melt and become a part of.

' Other waxes and gums may be employed in lieu of those stated provided the solution produced by the union thereof will be waterbut this coating willnot cause the card to warp as 1s the case where a water glue is proof in its nature and form acoating to which an oiled paper will adhere.

'lhe liner shown in the drawings comprlses a disk formed of pul board 1, having a coating 2, such as above 3 oiled paper disk 3 united to the coated surface 2, as before described, by the gum The use of liners formed of separate disks and the expense of assembling them in a cap are,avoided and the warping, distor-.

described.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is: a

1. The method of forming liner material which consists in coating a sheet of pul board with a heated solution ot-a war: an a gum and then applying asheet of oiled paper to such coated surface, and pressing the two sheets firmly together.

2. The method of. forming liner material which consists in coating a sheet of pulp board with a heated solution of a mineral wax and a vegetable gum, and then applying a sheet of oiled paper to such coated surface and pressing the two sheets togethhr.

3. The method of forming liner material which consists in coating a sheetof pulp escribed, and an I llltl mounted in the guideway 27 and is arranged to be detachably fixed to the lathe bed 9 by means consisting, in the present embodiment,'of a rod 29 fixed tosaid member and slidably extending through an apertured stud 30 attached to the bed, a set screw 31 being provided to clamp the rod 29. in the stud 30. 1 I

On the table 28 is pivotally mounted a guide member 32 having upwardly p' ro-' jectingparallel walls defining a rectangular channel. I The pin 33 that "forms the pivot for the guide member 32 is situated midway of the length of said guide member. Pzolts and 35 passing through slots 36 and 37in the member 28 are adapted to clamp the guide member 32in adjusted angular position". Additional bolt holes '38 laterally spaced in the guide member 32 are adapted.

to receive the bolts 34: and 35. to extend the range of adjustment ofsaid guide member.

"The operative Connection between the bearing member '19, 20band the guide member 32 will now be described. A block or follower 41 is carried along by a pin 39 and slides in theguide member 32. The

pin 39 carries an enlargement 42 holding the block in place and enters a depending lug or projection 40 formed integral with the block 19. The carriage 10 has a slot 43"]0 which the p'rojection lO is slidably mounted. Said projection bears against the side Walls of the slot 431 In the operation of my device With the .set screw3l tightened, the table 28v and the guide 32 remain stationary. As the carriage 10 travels, the block 41 slides in the guide 32 and forces the pin 39 to move, and with it theblock 19, tool support 1 and the cutting tool, thus cutting the desired taper. When it is desired not to use the taper attachment, set'screw 31 may be loosened. I Theslide 28'and guide 32 Will then'niove with'the apron land the block 19 will be effectively locked from transverse movement.

\Vlnle I have descr1bed in detail one embodiment of my invention, it should be' clearlyunderstood that the description is illustrative only, and that all legitimate modifications andimprovements covered by the subjoined claims a-reproperly within the scope of my invention.

I claim as my invention:

' l. A lathe having, in combination, a longit'udinally slidable 1 carriage, transverse ways on said carriage, a 'b earing block slidablein said ways, th e'npper'portion of said bearing block being slotted, additional transverse ways on said carriage, atool support on said, additional Ways, said tool support having a lug entering theslotin said bearing block and adapted to engage a feed riage; a cross-feed screw extending below,

said tool support; a depending lug on said 7 tool support engagin said cross-feed screw;

a bearing block supporting said cross-feed screw at one end and having an extension underlying said screw, said extension'being cut away. to provide clearance for said lug.

3. lathe having, in combination, a longitudinally slidable carriage, a transverse groove in said carriage, transversely slidable bearing block in said groove, a pair of transverse Ways on said carriage on opposite sides of said groov'efa tool holder slidable'on said waysand overlying said block, and an operative connection between said block and said tool holder. 7 i

4. A lathe having, in combination, a longitudinally v slid'able carriage, a "transversely slidable tool support on said carriage, a transversely slidable block mounted in said carriage and extendingthrough the same underneath said tool support, means for ads justing the transverse spacing'of said bearing block and tool support, and 'a taper attachment 'operatively' conne transversely 'slidable block.v 7

A'lathe having in combination, a longitudinally slidable carriage, a transversely slidable block in said carriage, and atransverse feed screw supported by andghoused insaid block".

6. A lathe 'having, gitudinally slidable carria'gaa transversely slidable block in said-carriage,- a tool sup port transversely slidabl'e on i said carriage over said block, "a transverse feed screw ournalled at one endin said block andextending through a groove formed in the ups cted to said n o b na on, a

transversely slidable toolsupport moun ted in said carriage and overlying said block,

said support having a lug projecting into said recess in threaded engagement with:

said screw. r

In testimony my hand.

I GUSTAE avin sunnsransn.

whereof, I have ereunto set 

